Abstract: A vapor generator including an upright furnace section the boundary walls of which are formed by a plurality of tubes, a portion of which extend at an angle with respect to a horizontal plane. Fluid is passed through the length of the furnace section to convert a portion of the fluid to vapor or to heat the fluid. A plurality of vertical bars are provided which define support surfaces for the tubes and which are welded to the tubes for supporting same.

Abstract: A vapor generator is made up of a tube wall with conducting tubes which are gas-tightly welded together followed by a sheet metal flue gas duct leading to a stack. The tube wall has a temperature zone in which the temperature difference between the medium in the tubes and the flue gas is at its minimum under any operational conditions. In addition to the conducting tubes, the tube wall has a portion with non-conducting tubes which are gas-tightly welded together and through which the medium is non conducted. The non-conducting tubes are aligned with respective tubes of the conducting portion of the tube wall with the interposition of tube transition pieces or T-shape pieces. The T-shape transition pieces include a connection to the conducting tube with a right angle tube leg for the offtake of the vapor and an aligned leg which is welded to the non-conducting tubes of the non-conducting tube section.

Abstract: A tube wall made of tubes extending parallel to one another and horizontally to inclined, which are provided with opposite fins on the longitudinal edges of which adjacent tubes are welded gas-tight to one another. The fins are formed as a continuous band exceeding in width the outer diameter of the tube. The band is arranged tangentially on the outside of the tube and the bands, which are welded with each other, are suspendable on a supporting structure for assuming the forces resulting from the dead weight of the tube wall and from additional loads.

Abstract: An apparatus for suspension of a tube wall, particularly a combustion chamber wall, made for example of helical finned tubes which are welded gas-tight with one another extending horizontally or inclined, on an upper part of a steam generator made of vertical tubes, by means of vertically extending tie rods which are connected with the tube wall over welding bridges. Respectively pairs of tie rods which extend spaced by a small distance from one another are secured on the upper part of the steam generator by means of a common connection piece and are welded on their adjacent longitudinal edges over common welding bridges with the tube wall. The welding bridges are spaced from one another in the longitudinal direction of the tie rods.

Abstract: A system for cooling high-temperature gasifiers and method for its operation wherein cooling conduits extend vertically through the walls of the gasifier and are connected at their ends to a closed-water circulation system which incorporates heat exchangers for removing heat from the system. Boiling in the system is prevented, and good heat transfer characteristics are achieved, by maintaining a high pressure system, at least 40 bar, coupled with a flow velocity of between 5 and 7 meters per second at a maximum internal diameter of the cooling conduits of 51 millimeters. Means are provided for maintaining the temperature of the water exiting from the cooling conduits at least 10.degree. C below the boiling point at the pressure and flow rate of the system.

Abstract: A steam generator for a steam power plant, comprising a furnace for generating hot gases and a gas pass in communication therewith, the gas pass having a sectionalized chamber for hot gas cooling. The entire gas pass together with the chamber constitute a single construction unit built up of water walls arranged one above another in height and bent in a horizontal plane so that each element of each water wall has a different number of bends. The adjacent water walls are interconnected through the top points of the bends forming sections of the entire gas pass together with the sections of the cooling chamber. This results in the formation of a system of rigidly interconnected sections which constitutes the basis of the steam generator structure featuring high rigidity and a high bearing capacity. This allows obviating any additional appliances for fastening the generator and, hence, diminishing materially the metal requirements and simplifying both the erection and operation of the steam generator.

Abstract: A buckstay arrangement for a steam generator whereby tube walls of the steam generator are supported by buckstays having retainers that slide longitudinally to permit thermal expansion thereof while providing continuous support for the tube walls.

Abstract: A forced flow vapor generator wherein at least one of the upright boundary walls of the furnace has upper and lower portions formed of panels of upwardly extending laterally spaced tubes rigidly united throughout most of their length. Some of the panels of the upper and lower wall portions have segments thereof interlaced and coextensive with each other, the interlaced segments being rigidly united to transmit the load of the lower wall portion to the upper wall portion.